tj-tzhg/JJMediSys/cs/SocketClient.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading.Tasks;

namespace JJMediSys
{
    public class SocketClient
    {
        private Socket _clientSocket;
        private IPEndPoint _serverEndPoint;
        public  bool Status = false;

        public SocketClient(string serverIp, int serverPort)
        {
            _serverEndPoint = new IPEndPoint(IPAddress.Parse(serverIp), serverPort);
        }

        public bool Connect()
        {
            _clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
            try
            {
                _clientSocket.Connect(_serverEndPoint);
                Status = true;
                SystemSet.logger.Info("Connected to server");
                return Status;

            }
            catch (SocketException ex)
            {
                Status = false;
                SystemSet.logger.Info($"Connection failed: {ex.Message}");
                return Status;
            }

        }

        public bool SendData(string data)
        {
            if (_clientSocket == null || !_clientSocket.Connected)
            {
                SystemSet.logger.Info("Not connected to server");
                Status = false;
                return false;
            }

            byte[] buffer = Encoding.UTF8.GetBytes(data);
            try
            {
                _clientSocket.Send(buffer);
                SystemSet.logger.Info($"Sent data: {data}");
                return true;
            }
            catch (SocketException ex)
            {
                SystemSet.logger.Info($"Send failed: {ex.Message}");
                return false;
            }
        }

        public string ReceiveData()
        {
            if (_clientSocket == null || !_clientSocket.Connected)
            {
                SystemSet.logger.Info("Not connected to server");
                Status = false;
                return null;
            }

            byte[] buffer = new byte[1024];
            try
            {
                int bytesReceived = _clientSocket.Receive(buffer);
                string receivedData = Encoding.UTF8.GetString(buffer, 0, bytesReceived);
                SystemSet.logger.Info($"Received data: {receivedData}");
                return receivedData;
            }
            catch (SocketException ex)
            {
                SystemSet.logger.Info($"Receive failed: {ex.Message}");
                return null;
            }
        }

        public void Disconnect()
        {
            if (_clientSocket != null)
            {
                _clientSocket.Shutdown(SocketShutdown.Both);
                _clientSocket.Close();
                _clientSocket = null;
                SystemSet.logger.Info("Disconnected from server");
                Status = false;
            }
        }
    }
}